Hey guys as some of u know, i have recently purchased a 73 camaro with a big block. I was wondering I have a fan shroud that came with the car and was wondering what the origional part number of a big block fan shroud was. The number on it is 3973900. does anyone know if this is an origional big block camaro shroud? And if not what it is for? thanks

The part number on the big block shroud is 3973920.The one you have came off a small block.

awe man I was gettin excited there for a minute. I also have anothet shroud that came with the car. It has the number 3973910. What is that one for?

The fan shroud 3973910 is from a 70-74 Z28.